I have made a Custom WebPart, with some Custom EditorParts in it.
My Custom EditorPart consists of a simple TextBox and a Validator.
My only problem is that I'd like my TextBox to have that "..." button which default custom property fields have that you can click on and get a popupwindow where you can enter your text.
I have tried InputFormTextBox but haven't been able to customize it to resemble the SharePoint default-behaviour.
I suppose I could roll my own using jQuery but I have a feeling that I could use an existing SharePoint-control to achieve this.